Estimated shipping for UPS is double what it should be from the actual and from UPS website estimate. I believe the UPS Rate Code: ecu381627 is wrong... Where do I check to see if that is the right code?
Can you let me know the source and destinations zips, what the estimator is giving and what the UPS website is giving and I'll take a look. If you could let me know the site URL too that would be useful.
Are you using negotiated rates with UPS? With negotiated rates for some reason you have to specify the state as well as the zip in the call to UPS. If you are, can you go to the shipping admin -> Shipping Methods page and click on UPS admin and set that to Negotiated Rates.